Which of the following describes an object which is NOT speeding up? a)  v = -1 m/s, a = -8 m/s^2 b) v = 3 m/s, a = 4 m/s^2 c) v = 7 m/s, a = -2 m/s^2 d) v = 0 m/s, a = -6 m/s^2

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A car is traveling at a rate of 58 feet per second when the brakes are applied. The position function for the car is given by s= -7.25t2 + 58t, where s is measured in feet and t is measured in seconds. Use this function to complete the table showing the position, velocity, and acceleration for each given value of t. 3 t S ds dt d²s dt² 0 Need Help? 58 -14 5 What can you conclude?! It takes 2 Read It 0 ✓ ✔ 50 75 58 -29 1 ✓ Viewing Saved Work Revert to Last Response X X 87 58 -43 5 2 ✓ X X 110.25 58 -58 X seconds for the car to stop, at which time it has traveled 87 D X ]x | 58 X 120.5 ft. -725 4 x x

22) A dog jumps straight up to a height of 0.7 m. What is the initial velocity of the dog? a) 1​​​ b) 3.7​​ c) 5​​ d) 9.81

The velocity-time leftward-moving table represents the motion of a car. What is the magnitude and direction of the car's acceleration? Time (s) 0.0 1.0 2.0 3.0 4.0 Magnitude: Direction: Velocity (m/s) 26.0, left 20.0, left 14.0, left 8.0, left 2.0, left

a) What is the initial velocity of the object? v (m/s) 61 0 m/s 4 b) What is the average velocity during time t = 4s to 5s? 3 2 3 m/s c) How many times does the object change direction of travel? t (s) 0 11 12 12 4. 7 & 9 -1 (NOTE: time zero does not count and standing still does not count as a direction -2 change) 2

What is the acceleration of the object from 9.0s to 12s? (a) 0 m/s^2 (b) -20 m/s^2

Describe the difference between someone who is accelerating and someone who is only moving at a constant velocity.   A person moving a constant velocity will ‘feel’ how fast they are moving. A person accelerating does not feel the acceleration. A person who is accelerating will ‘feel’ that acceleration, but the person moving at constant velocity will not feel the motion. Both of the above. None of the above.

An object moving with uniform acceleration has velocity +12m/s in the positive x direction when itsx coordinate is 3 m. If its x coordinate 2s later is -5 m. What is its acceleration (in m/s y? A) -16 B) -18 C) -10 D) -8

2) How long will it take a dropped object to reach the ground if dropped from a height of1.75 meters?